Home / 838,745,249.61-1,257,844,053.12-278,356,547.62

Finding the Fourth Proportional to 838,745,249.61, 1,257,844,053.12 and 278,356,547.62

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Solution

The fourth proportional to 838,745,249.61, 1,257,844,053.12 and 278,356,547.62 is: 417,443,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,745,249.61 : 1,257,844,053.12 = 278,356,547.62 : x
  2. Step 2: Convert to fraction form
    838,745,249.61/1,257,844,053.12 = 278,356,547.62/x
  3. Step 3: Cross multiply
    838,745,249.61x = 1,257,844,053.12 × 278,356,547.62
  4. Step 4: Simplify right side
    838,745,249.61x = 350,129,128,070,831,040
  5. Step 5: Solve for x
    x = 350,129,128,070,831,040/838,745,249.61
  6. Step 6: Final answer
    x = 417,443,947.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.